AP PHOTOS: Voters head to polls in delegate-rich primaries

MT. GILEAD, Ohio (AP) — Voters in five states headed to polling places on a delegate-rich day of voting that could clarify the nomination fights in both parties.

Tuesday's contests gave Donald Trump and Hillary Clinton the chance to pull further ahead as they seek their parties' nominations. While Florida and Ohio are the biggest prizes, Missouri, Illinois and North Carolina are awarding a cache of delegates.

If Trump sweeps Tuesday's contests, he'll cross a threshold with more than 50 percent of the delegates awarded so far.

Entering Tuesday, Clinton had 768 pledged delegates compared to 554 for Sanders, according to an analysis by The Associated Press. Overall, Clinton has 1,235 total delegates, more than half the total needed to clinch the nomination when the count includes superdelegates.